You might want to save up those red scrips for gear and do the favors after you get fully geared up. You're only allowed 9 red per week, and a red mainhand tool requires 26, so that alone is 3 weeks worth. Then you have all the rest of the gear to upgrade, which will take quite awhile. I'm almost done gearing my botanist, third in line for red gear, and it's taken next to forever to get to this point. I'll be doing favors once he's done, but I didn't see any sense doing them sooner. Good luck.